code: def test_log_performance(self):
      n = 2**10
      x = tf.random.uniform(shape=[n], minval=0, maxval=1)
      private_x = tfe.define_private_input("server0", lambda: x)
  
      @tfe.function
      def test_log(input):
          y = tfe.log(input)
          return y.reveal().to_native()
  
      Performance.time_log("1st run")
      test_log(private_x)
      Performance.time_log("1st run")
  
      Performance.time_log("2nd run")
      test_log(private_x)
      Performance.time_log("2nd run")
  
file_path: tf-encrypted/examples/benchmark/operation/op_profile.py
imports: import argparse
  import unittest
  import numpy
  import tensorflow
  import tf_encrypted
  from tf_encrypted.performance import Performance
  from tf_encrypted.protocol import ABY3
  from tf_encrypted.protocol import Pond
  from tf_encrypted.protocol import SecureNN
label_desc: Use image node_id 5 for calling the TestOPProfile obj's underlying member method code with example usage: obj.test_log_performance() and returns: y